A sign hangs outside a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A sign hangs outside a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A night safe is seen outside of a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A night safe is seen outside of a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A sign hangs outside a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A sign hangs outside a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A sign hangs outside a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A sign hangs outside a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A sign hangs outside a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A sign hangs outside a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A cyclist rides past a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A cyclist rides past a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A London taxi drives past a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

A London taxi drives past a Lloyds TSB bank branch, part of the Lloyds Banking Group Plc, in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Simon Dawson/Bloomberg via Getty Images

An employee cleans the door at the entrance to a branch of the Royal Bank of Scotland Group Plc (RBS) in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Chris Ratcliffe/Bloomberg via Getty Images

An employee cleans the door at the entrance to a branch of the Royal Bank of Scotland Group Plc (RBS) in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Chris Ratcliffe/Bloomberg via Getty Images

Pedestrians pass the headquarters of the Royal Bank of Scotland Group Plc (RBS) in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Chris Ratcliffe/Bloomberg via Getty Images

Pedestrians pass the headquarters of the Royal Bank of Scotland Group Plc (RBS) in London, U.K., on Wednesday, July 18, 2012. The U.K. financial regulator said it's investigating seven lenders over attempts to manipulate interbank offered rates as lawmakers criticized it for not opening the probe earlier. Photographer: Chris Ratcliffe/Bloomberg via Getty Images